Radeon HD 6790 vs Radeon HD 7770 GHz Edition
Summary
Reasons to consider Radeon HD 6790 |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 7770 GHz Edition |
| 11% higher gaming performance. |
| 70 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6790 . |
| This is a much newer product, it might have better long term support. |
| Supports Direct3D 12 Async Compute |
| Supports ReLive (allows game streaming/recording with minimum performance penalty) |
| Supports Mantle |
| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon HD 7770 GHz Edition
The Radeon HD 7770 GHz Edition is the better performing card based on the game benchmark suite used (38 combinations of games and resolutions).
Core Configuration
| Radeon HD 6790 | | Radeon HD 7770 GHz Edition | |
|---|
| GPU Name | Barts (Barts LE) | vs | Cape Verde (Cape Verde XT) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 255 mm² | vs | 123 mm² |
| Transistors | 1,700 million | vs | 1,500 million |
| Shaders | 800 | vs | 640 |
| Compute Units | 10 | vs | 10 |
| Core clock | 840 MHz | vs | 1000 MHz |
| ROPs | 16 | vs | 16 |
| TMUs | 40 | vs | 40 |
Memory Configuration
| Radeon HD 6790 | | Radeon HD 7770 GHz Edition | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit | vs | 128 bit |
| Memory Speed | 1050 MHz
4200 MHz effective | vs | 1125 MHz
4500 MHz effective |
| Memory Size | 1024 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 6790 | | Radeon HD 7770 GHz Edition | |
|---|
| TDP | 150 watts | vs | 80 watts |
| Release Date | 4 Apr 2011 | vs | 15 Feb 2012 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better
Points (higher is better)